Merge branch 'hotfix/96'

Close #96
Update blog layout

- only one column for entries
- back link added to the bottom of an entry
- remove unnecessary HTML elements
Add style for warning box in docs
Added paradox code slovenia UG
Merge branch 'hotfix/ug-slovenia'
Merge branch 'hotfix/ug-slovenia' into develop
Wrote release announcement for 2.2.1
[2.2.1] release readiness
Merge branch 'hotfix/release-2.2.1'
Merge branch 'hotfix/release-2.2.1' into develop
Updated to 2.2.1

- Ensured console works (following report on issue tracker)
Merge branch 'hotfix/zf2-2-1-update'
Merge branch 'hotfix/zf2-2-1-update' into develop
Fixed the ZF doc for ver. <= 1.10
Added ZendCon promo banner

- Had to update CSS so that divider was correctly sized to right-content
Merge branch 'hotfix/zendcon-promo'
Merge branch 'hotfix/zendcon-promo' into develop
Fixed the manual.html request for ZF 1.9 and 1.10 docs
Merge remote-tracking branch 'zf-web/master' into fix/old_zf1_docs
Fixed ZF docs for 1.9 and 1.10